I still feel the map may be a bit too large, but I think the overall layout has a lot of potential with tweaks. The main thing is that the map has a couple areas that were largely unused, and the upper route (that the bots come out of) seems a bit out of place since it basically runs behind the bulk of the map.

I think it may be a good idea to focus on the sort of "figure 8" style path, since that is kind of central to the layout.

In this picture I would likely move the bot entrance on the left to the right side under those trees, and get rid of that area altogether.

Expanded starting area, added a new dropdown point for bots.
Bots now use the back half of the map more often.
Left flank now doesn't take the bots around behind you.
Different route for the bomb carriers work now.
Added another route for the bomb carrier that goes up the side.

Great map it looking great btw! Thanks for all the work you have been doing. I have noticed a few bug that i have encountered.

-People building on top of train avoiding sentry busters, which causes that annoying tic-tok loop..

-Wave 5? when the Giant Medic/Heavy combos come out, first one came out fine. Almost made it to point.. waited about 1min of defending pyros and realized that the next wave of Giant Medic/Heavy combo was stuck behind the rock/tree where they drop down.. Happened to the one after that as well. Maybe just make that rock there apart of the cliff? so they drop down on it?

Again great work and cant wait to see future updates!! im running it on my NY server right now 108.174.61.193:27015